Open AccessDIODE-LASER BEAM CONVERSION WITH DIFFRACTIVE OPTICAL ELEMENTS
Author(s) -
Ji Chul Yang,
Jingjuan Zhang,
Yao De-Cheng,
Yansong Chen
Publication year - 1996
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.45.2027
Subject(s) - optics , wavefront , diffraction , laser beam quality , beam (structure) , simulated annealing , m squared , transformation (genetics) , gaussian beam , diode , laser beams , gaussian , laser , physics , beam diameter , optoelectronics , computer science , algorithm , biochemistry , chemistry , quantum mechanics , gene
A pair of diffractive optical elements are desinged to implement the wavefront transformation from an elliptical-gaussian beam to a flat-top circular beam,with the aid of a new algorithm (SAIO) composed of a simulated annealing algorithm (SA) and an input-output(IO) algorithm. The energy transformation efficiency is up to 91.9%. SAIO performs better than SA or IO alone.